Nice FAQ section.
• IP - 10/10
• Timezone - 10/10 (I am in New Zealand, but assuming your target market is in the US, it works well)
• Ways to engage - 10/10
• Security - 7/10 - Not bad. Security is a super tricky thing to know the correct level of detail to go to. Some of our clients gave us 100+ question questionnaires on our processes. It was the most time consuming and painful part of my job dealing with it. Sometimes in order to know that you are walking the talk if you mention something like you are in line with ISO 27001 requirements, or some such. Note that I said, 'inline' with i.e. you do not necessarily need to have ISO 27001 certification or anything, just that you are aware that security management is a thing, and that you practise it. This might help you with B2B saas customers, at least ones that have larger clients. (please note that coming to grips with security management systems like ISO27001 is time intensive (a few weeks). But yeah, the more specific you can get here the better. Your first sentence 'Our developers will match our client's security processes' is also good.
One other thing that might be good to cover is how you guys like to work / communicate. If you have any preferred methods there, or if you find it works better to integrate with the clients processes (e.g. version control, chat, video, apps, agile, scrum)
And finally, you communicate very well so that would give me a lot of confidence. Being able to communicate complex technical concepts to developers was a lot of my job. Working with people that just understood what I meant, and I understood what they meant was a massive time saver. Conversely a lot of time was spent with people that could not communicate well... and that often ended in frustration / me only giving them tasks that could be explained simply and doing complicated ones myself. If all of your developers have strong language skills you should talk this up. If any of your developers do not have strong communication skills/ are not fluent in the clients language, maybe address how this is handled. i.e. all communication goes through a project manager who is fluent.